Door or shutter



E. H. McCLOUD.

DOOR 0R SHUTTER- APPLICATION FILED JUNE $0.19!!)- 1,386,192. Patentedylg. 2,1921.

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E. H. McCLOUD.

DOOR 0R SHUTTER.

APPLICATION FILED JUNE 30. 1919.

' Patented Aug. 2, 1921.

3 SHEE YS-SHEET 3.

F296 lidwardllM Cloud UNITED STATES PATENT OFFICE.

EDWARD H. MoCLOUD, OF COLUMBUS, OHIO, ASSIGNOR TO THE KINNEAR MANUFAC- TUBING COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

DOOR OR SHUTTER.

Specification of Letters Patent.

Patented Aug. 2, 1921.

To all whom it may concern:

Be it known that I, EDWARD H. MoCLoUn, a citizen of the United States, residing at Columbus in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Doors or Shutters, of which the following is a specification.

This invention relates to that type of door or shutter which is composed of sections or panels, one sliding with reference to the other and the lower adapted to be raised and the two together deflected into horizon tal extended position.

The object of the invention is to provide a construction of simple, compact and strong form adapted for easy operation.'

The invention is embodied in the example herein shown and described, the features of novelt being finally claimed.

In tlie accompanying drawings- Figure 1 is a front elevation.

Fig. 2 isa vertical section on the line IIII Fig. 1 looking to the right as viewed in said figure, the lower panel of section being lowered to door-closing position.

. Fig. 3 is a similar view showing the lower section raised to coincide with the uppersection.

Fig. 4 is a similar view showing the two sections partly deflected.

Fig. 5 is a similar view showing the sections fully deflected to horizontal positlon.

Fig. 6 is a detail in horizontal section on the line VI-VI Fig. 1. r

Fig. 7 is a diagrammatic view show ng the scheme for connecting the operating chains.

Fig. 8 is a similar view deplcting the same as connected with the operated elements.

In the views of the drawing the charac ter 10 designates the upper door sectionwhich is provided with ofl'set members at its upper corners for hinging it to the wall of the building as shown at 11. At its two vertlcal edges the upper section is provided with an angle bar 12 (see Figs. 2 and 6) to form a channel or way 13 to receive appropriate engaging members on the lower door section.

The lower door section is designated 14, said section having its vertical edges provided with flanges 15 (see Fig. 6) that enter or engage the channels 13 when that section is raised. The engagement of the flanges 15 with the channels 13 prevents lateral separation of the lower section from the upper section when the two sections are deflected as hereinafter described. The upper section is provided with gravity hooks 16 to engage the lower edge of the lower section when the latter is raised to coincide wlth the upper section and the two are shifted from vertical position. The hooks 16 prevent the lower section from downward movement parallel with reference to the upper section.

The upper section has pivoted to the middle of each of its vertical edges, as at 17, a bar 18,.the other end of said bar being provided with a roller 19 that travels on a suitable track on the face of the doorway. The path of said roller is inclosed by a cas- 1ng 20 (see Fig. 6).

he lower section and the arms for actuating the upper section or panel are operated by two parallel moving chains or cords 21 and 22. These chains or cords, in the instance shown, are passed over suitable sheaves on the shafts 23 and 24, the ends of the chains being connected at the opposite sides of the structure to the lower panel and an arm respectively. The important point is that the opposite ends of each chain shall be connected one to the panel and the other to the arm or so that the lower panel and the arm may be drawn independently of each other respectively. The loops of the chains suspend a single counterbalancing welght 25 and traverse pulleys 26 on that weight to reduce friction. The advantage of this arrangement is that the panel is operable independently of the operation of the arms and reversely. In the operation of the structure shown, therefore, the lower section or panel is first raised to coincide with the upper panel and when in this position the arms are next raised thereby defleeting the coincided panels. In closing the door or shutter the sequence is reversed, that is the coincided panels are first lowered to vertical position and after that the lower panel descends to closing position. These opening and closing movements are effected by the application of power in contrary directions.

To conveniently operate the door or shutter the sheaves 27 and 28 on the shaft 24 are each made double to receive the operat ing chains or cords and said double sheaves are connected for differential operation. That is to say, loose of the shaft 24 is a worm wheel .29 carrying bevel pinions 3O engaging bevel gears 31 se'cured to the ad jacent sides of tlle double sheaves so that inequality in the movement at any point ofthe chains can be compensated for; or one of the double sheaves turned without turning the other, or both turned together as usual in such gearing. The worm wheel 29 can be driven by a worm 32 on shaft 33, said shaft being provided with a sprocket wheel 34 engaged by an endless chain 35 extending downward to within easy reach of an operator.

The forms of the parts can be changed without departing from the gist of the invention as claimed.

hat I claim is:

1. In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section, a deflecting arm hinged at one end to the upper section and sliding in a guide at the other end and means whereby the lower section and the arm may be operated inde pendently of each other.

2. In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section, means for latching the sections together when in coincidence, a deflecting arm hinged at one end to the upper section and sliding in a guide at the other end and means whereby the lower section and the arm may be operated.

3. In a door or shutter, the combination of a hinged upper section. a lower section slidable into coincidence with the upper section. deflecting arms hinged to the upper section and means for operating the lower section and arms independently of each other comprising parallel movable flexible members.

4. In a door or shutter, the combination of a hinged upper section. a lower section slidable into coincidence with the upper section, deflecting arms hinged to the upper section and means for operating the lower section and the arms independently of each other comprising parallel movable flexible membcrs. each having its opposite ends connected. one to an arm and the other to the lower section.

In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section, deflecting arms hinged to the upper section and means for operating the lower section and the arms independently of each other comprising parallel movable flexible members each having its opposite ends connected one to an arm and the other to the lower section, said flexible members having loops and a counterweight supported in said loops.

6. In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section, deflecting arms hinged to the upper section and means for operating the lower section and arms independently of each other comprising parallel movable flexible members each having its opposite ends connected, one to an arm and the other to the lower section, said flexible members having loops and a single counterweight supported in said loops.

7 In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section, deflecting arms hinged to the upper section and means for operating the lower section and the arms independently of each other comprising parallel movable flexible members, each having its opposite ends connected one to an arm and the other to the lower section and a differential mechanism for operating said flexible members.

8. In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section. deflecting arms hinged to the upper section and means for operating the lower section and the arms independently of each other comprising parallel movable flexible members, each having its opposite ends connected, one to an arm and the other to the lower section, said flexible members having loops and a counterweight supported in said loops and a differential mechanism between said counterweight and the lower section and deflecting arms for operating said flexible members.

9. In a door or shutter, the combination of a hinged upper section, a lower section slidable into coincidence with the upper section, a deflecting arm for the sections hinged at one end to one of the sections and sliding in a guide at its other end and means for actuating said deflecting arm and the lower section.

EDWARD H. MoCLOUD. 

